Engine oil Mobil or ZIC
Been using that oil on my Gen 3 Montero since 2020, and ok naman, no complaints.
Mobile 1 syn. doesn’t burn any yet. Never had issues with it.
Mobil 1 5w30 Annual advanced synthetic. We have a garage full of Mustangs heavily modified...all on Mobil 1 full synthetic...always. No engine, turbo, or supercharger issues on these cars as well.
Mobil 1 with no issues change every 3k, rarely top off in between changes
Mobile one is best in every single case, unfortunately its the most expensive for this reason.
I’ve heard valvoline is good too. I use Mobil 1
Better to use ZIC X7 fs oil. Korean oil.
Been using it for several years and it’s amazing for its price.
I personally lean towards affordability, so I run Mobil 1 0w-40 because the local parts stores run sales for $35-40 pretty regularly.
My changes have generally been religious at 5k and that didn’t save my GTI from losing compression in cyl3 at 37k untuned miles it suffered 15% leakdown vs the other 3. That car got M1 0w-40, tried and true stuff, so you just never know.
I was running it in a VR6 engine, and couldn't believe how much extra chain and lifter noise there was. I put up with it for a couple weeks, thinking it might get better but it didn't, so I switched to Castrol Edge 5w-40 and noticed the difference immediately. Noise means wear, so I feel comfortable staying away from M1 for my VR6 engines.
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